hmm ... that's strange ... I play mp3 on my MP790, which is basically using 
the same chip NEC Vr4121@168 ... and XAudio plays fine. Granted that is 
running in WinCE3.0 and not NetBSD ... but I thought it should run better?

The default Windows Media Player on my MP790 can get jumpy when I switch 
apps while XAudio plays just fine. I believe its to do with buffering 
implementation. Maybe this might point you somewhere?

-Robin

"Andy Ruhl" <acruhl@gmail.com> wrote in message 
news:78a2305a05021421122f3c7f33@mail.gmail.com...
>I went out and bought a USB sound card thinking that I'd be able to
> use it on the Mobilepro 880.
>
> I got a Turtle Beach Audio Advantage Micro. It's a pretty cool
> adapter. I plugged it into my NetBSD/amd64 machine and it worked right
> away. Sounded great.
>
> So I recompiled the kernel for the Mobilepro 880 to include USB audio.
> Unfortunately, this machine is WAY too slow to do this. It would play
> about a tenth of a second of audio every half second or so. This was
> using mpg123.
>
> So if you get a bright idea to try USB audio on a Mobilepro 880, you
> might want to think twice...
>
> Here's what it looks like though:
>
> uaudio0 at uhub0 port 1 configuration 1 interface 0: C-Media INC. USB
> Audio, rev 1.10/0.10, addr 2
> uaudio0: audio rev 1.00
> audio1 at uaudio0: full duplex, independent
>
> Andy
>